Process for the continuous manufacture of aryl alkyl carbonate and/or diaryl carbonate using vapor recompression
    1.
    发明授权
    Process for the continuous manufacture of aryl alkyl carbonate and/or diaryl carbonate using vapor recompression 有权
    使用蒸汽再压缩连续制造碳酸芳基烷基酯和/或碳酸二芳基酯的方法

    公开(公告)号:US09284254B2

    公开(公告)日:2016-03-15

    申请号:US14031836

    申请日:2013-09-19

    CPC classification number: C07C68/065 C07C68/06 C07C68/08 C07C69/96

    Abstract: In an embodiment, a process for preparing an alkyl aryl carbonate and a diaryl carbonate, comprising: reacting a dialkyl carbonate and an aromatic hydroxy compound in a production column to form the alkyl aryl carbonate and the diaryl carbonate; directing a bottom stream of the production column to a reboiler, wherein the bottom stream comprises the alkyl aryl carbonate and the diaryl carbonate; heating the bottom stream in the reboiler with heat from an overhead stream of the production column to result in a heated bottom stream; directing a first portion of the heated bottom stream back into the production column, wherein the first portion comprises an aromatic hydroxy compound; and collecting the diaryl carbonate and the alkyl aryl carbonate from a second portion of the heated bottom stream.

    Abstract translation: 在一个实施方案中,制备碳酸烷基芳基酯和碳酸二芳基酯的方法,包括:在生产塔中使碳酸二烷基酯和芳族羟基化合物反应以形成碳酸烷基芳基酯和碳酸二芳基酯; 将生产塔的底部流引导到再沸器,其中底部流包含碳酸烷基芳基酯和碳酸二芳基酯; 用来自生产塔的顶部物流的热量加热再沸器中的塔底物流,导致加热的底部物流; 将加热的底部流的第一部分引导回生产塔,其中第一部分包含芳族羟基化合物; 并从加热的底部料流的第二部分收集碳酸二芳基酯和碳酸烷基芳基酯。

    PROCESS FOR THE CONTINUOUS MANUFACTURE OF ARYL ALKYL CARBONATE AND/OR DIARYL CARBONATE USING VAPOR RECOMPRESSION
    2.
    发明申请
    PROCESS FOR THE CONTINUOUS MANUFACTURE OF ARYL ALKYL CARBONATE AND/OR DIARYL CARBONATE USING VAPOR RECOMPRESSION 有权
    使用蒸汽回收法连续制备碳酸亚铁和碳酸二甲酯的方法

    公开(公告)号:US20140081039A1

    公开(公告)日:2014-03-20

    申请号:US14031836

    申请日:2013-09-19

    CPC classification number: C07C68/065 C07C68/06 C07C68/08 C07C69/96

    Abstract: In an embodiment, a process for preparing an alkyl aryl carbonate and a diaryl carbonate, comprising: reacting a dialkyl carbonate and an aromatic hydroxy compound in a production column 200, 300 to form the alkyl aryl carbonate and the diaryl carbonate; directing a bottom stream of the production column to a reboiler 205, 305, wherein the bottom stream comprises the alkyl aryl carbonate and the diaryl carbonate; heating the bottom stream in the reboiler 205, 305 with heat from an overhead stream of the production column 200, 300 to result in a heated bottom stream; directing a first portion of the heated bottom stream back into the production column 200, 300, wherein the first portion comprises phenol; and collecting the diaryl carbonate and the alkyl aryl carbonate from a second portion of the heated bottom stream.

    Abstract translation: 在一个实施方案中,制备碳酸烷基芳基酯和碳酸二芳基酯的方法包括:在生产塔200,300中使碳酸二烷基酯和芳族羟基化合物反应以形成碳酸烷基芳基酯和碳酸二芳基酯; 将生产塔的底部流引导到再沸器205,305,其中底部流包含碳酸烷基芳基酯和碳酸二芳基酯; 用来自生产塔200,300的顶部料流的热量加热再沸器205,305中的塔底物流,以产生加热的底部料流; 将加热的底部流的第一部分引导回生产塔200,300,其中第一部分包括苯酚; 并从加热的底部料流的第二部分收集碳酸二芳基酯和碳酸烷基芳基酯。

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